21402565470

Names of 21402565470

• Cardinal: 21402565470 can be written as Twenty-one billion, four hundred two million, five hundred sixty-five thousand, four hundred seventy.

Scientific notation

• Scientific notation: 2.140256547 × 10¹⁰

Factors of 21402565470

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 10546

Divisors of 21402565470

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 5 6 9 10 11 13 15 18 22 26 27 30 33 39 45 53 54 55 65 66 78 90 99 106 110 117 130 135 143 159 165 195 198 234 265 270 286 297 318 330 351 390 429 477 495 530 583 585 594 689 702 715 795 858 954 990 1166 1170 1287 1378 1430 1431 1485 1590 1749 1755 2067 2145 2385 2574 2862 2915 2970 3445 3498 3510 3861 4134 4290 4770 5247 5830 6201 6435 6890 7155 7579 7722 8745 10335 10459 10494 12402 12870 14310 15158 15741 17490 18603 19305 20670 20918 22737 26235 31005 31377 31482 37206 37895 38610 45474 52295 52470 62010 62754 68211 75790 78705 93015 94131 104590 113685 115049 135967 136422 156885 157410 186030 188262 204633 227370 230098 271934 282393 313770 341055 345147 407901 409266 470655 554327 564786 575245 679835 682110 690294 815802 941310 1023165 1035441 1108654 1150490 1223703 1359670 1411965 1495637 1662981 1725735 2039505 2046330 2070882 2447406 2771635 2823930 2991274 3106323 3325962 3451470 3671109 4079010 4486911 4988943 5177205 5543270 6097597 6118515 6212646 7206251 7342218 7478185 8314905 8973822 9977886 10354410 12195194 12237030 13460733 14412502 14956370 14966829 15531615 16629810 18292791 18355545 21618753 22434555 24944715 26921466 29933658 30487985 31063230 36031255 36585582 36711090 40382199 43237506 44869110 49889430 54878373 60975970 64856259 67303665 72062510 74834145 79268761 80764398 91463955 108093765 109756746 129712518 134607330 149668290 158537522 164635119 182927910 194568777 201910995 216187530 237806283 274391865 324281295 329270238 389137554 396343805 403821990 475612566 548783730 648562590 713418849 792687610 823175595 972843885 1189031415 1426837698 1646351190 1945687770 2140256547 2378062830 3567094245 4280513094 7134188490 10701282735 21402565470
• Sum of all divisors σ(n): 68323046400
• Sum of proper divisors (its aliquot sum) s(n): 46920480930
• 21402565470 is an abundant number, because the sum of its proper divisors (46920480930) is greater than itself. Its abundance is 25517915460

Bases of 21402565470

• Binary: 10011111011101100010011101101011110₂
• Hexadecimal: 0x4FBB13B5E
• Base-36: 9TYJ97I

Squares and roots of 21402565470

• 21402565470 squared (21402565470²) is 458069808697636320900
• 21402565470 cubed (21402565470³) is 9803869070481536792312179323000
• The square root of 21402565470 is 146296.1567164357
• The cube root of 21402565470 is 2776.4420379465

Scales and comparisons

• 21,402,565,470 seconds is equal to 680 years, 27 weeks, 5 days, 21 hours, 4 minutes, 30 seconds.
• To count from 1 to 21,402,565,470 would take you about one thousand, three hundred sixty-one years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 21402565470 cubic inches would be around 231.4 feet tall.

Recreational maths with 21402565470

• 21402565470 backwards is 07456520412
• The number of decimal digits it has is: 11
• The sum of 21402565470's digits is 36
• More coming soon!